Kang M, Chhetri G, Kim J, Kim I, Seo T.
Sphingomonas sabuli sp. nov., a carotenoid-producing bacterium isolated from beach sand.
Int J Syst Evol Microbiol 2021;
71. [PMID:
34323678 DOI:
10.1099/ijsem.0.004896]
[Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-negative, aerobic and non-motile bacterium, strain sand1-3T, was isolated from beach sand collected from Haeundae Beach located in Busan, Republic of Korea. Based on the results of 16S rRNA gene sequence and phylogenetic analyses, Sphingomonas daechungensis CH15-11T (97.0 %), Sphingomonas edaphi DAC4T (96.8 %), Sphingomonas xanthus AE3T (96.5 %) and Sphingomonas oryziterrae YC6722T (96.0 %) were selected for comparing phenotypic and chemotaxonomic characteristics. Cells of strain sand1-3T grew at 7-50 °C (optimum, 30-35 °C), pH 5.0-8.0 (optimum, pH 7.0-8.0) and in the presence of 0-0.5 % (w/v) NaCl (optimum, 0 %). Major polar lipids included diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, sphingoglycolipid, one unidentified glycolipid and one unidentified phosphoglycolipid. The major fatty acids were summed feature 8 (C18 : 1 ω6c and/or C18 : 1 ω7c) and C18 : 1 2-OH. Moreover, the sole respiratory quinone and major polyamine were identified as ubiquinone-10 and homospermidine, respectively. The genomic DNA G+C content was 65.9 mol%. The digital DNA-DNA hybridization, average nucleotide identity and average amino acid identity values of strain sand1-3T and its reference strains with publicly available genomes were 17.9-18.9 %, 72.0-75.3 % and 63.3-76.5 % respectively. Based on polyphasic evidence, we propose Sphingomonas sabuli sp. nov. as a novel species within the genus Sphingomonas. The type strain is sand1-3T (=KCTC 82358T=NBRC 114538T).
Collapse